PT-2026-21376 · Appwrite · Appwrite

Adityabhatt3010 · Published 2026-02-21 · Updated 2026-05-18 · CVE-2026-27579

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions CollabPlatform (affected versions not specified)

Description The application’s Appwrite project is misconfigured, allowing arbitrary origins in Cross-Origin Resource Sharing (CORS) responses while also permitting credentialed requests. This allows an attacker-controlled domain to issue authenticated cross-origin requests and potentially read sensitive user account information, including email address, account identifiers, and MFA status.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Origin Validation Error

Weakness Enumeration

CWE-942

CWE-346

Related Identifiers

CVE-2026-27579

Affected Products

Appwrite

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-27579 · Security Note
• https://github.com/karnop/realtime-collaboration-platform/security/advisories/GHSA-qh5m-p8jh-hx88 · Note
• https://twitter.com/bugbountywizard/status/2056380627151466729 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2025208777637544028 · Twitter Post
• https://t.me/cveNotify/152722 · Telegram Post
• https://twitter.com/CVEnew/status/2025425468963639452 · Twitter Post
• https://t.me/CVEtracker/45381 · Telegram Post